A simple method is described which allows the estimation of local stress intensity factors of two-dimensional cracks by use of the weight function basic relation. The method is applied especially to semi-elliptical surface cracks. Two examples are considered. The half-penny shaped crack under bendin
Stress-intensity factors for a wide range of semi-elliptical surface cracks in finite-thickness plates
โ Scribed by I.S. Raju; J.C. Newman Jr.
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 720 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0013-7944
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๐ SIMILAR VOLUMES
This paper analyzes the interactions of two coplanar semi-elliptical surface cracks located, respectively, at the front and back surfaces in a finite thickness plate under uniform tension. Few numerical solutions app,~ar to be available in the literature so far for this kind of interaction. The anal
intensity factors were calculated at the deepest point and at the surface points of longitudinal semi-elliptical surface cracks in a thermally shocked pipe. The method of calculation is based on weight functions following a proposal by Mattheck, Munz and Stamm, Engng. Fract. Mech. 18, 633-641 (1983)
The weight function for the surface point of a semi-elliptical crack in a plate of finite thickness has been derived and tested against numerical data available in the literature. Derivation was accomplished by using the universal weight function form and two reference stress intensity factors. It w